|
2014-08-02, 22:31
|
#78 |
"Norbert"
Jul 2014
Budapest
109 Posts |
I search now in the interval
20,001<=x<=40,000, 201<=y<=400. I reached x=21,000 and found two new PRPs: 283^20956+20956^283, 51380 digits, 359^20992+20992^359, 53637 digits. |
|
|
|
2014-08-03, 13:16
|
#79 |
"Mark"
Apr 2003
Between here and the
11×577 Posts |
Two more PRPs:
2869^11736+11736^2869 3834^11473+11473^3834 Double-checking is now complete for y <= 5000 and x <= 12500 and 10000 < y <= 125000 and x <= 12500. I'm still working on 5000 < y <= 10000 and x <= 12500. |
|
|
|
|
2014-08-07, 00:50
|
#80 | |
|
"Mark"
Apr 2003
Between here and the
11×577 Posts |
Quote:
I'm going on vacation for 17 days starting tomorrow. This will complete while I'm gone so expect an update when I return. |
|
|
|
|
|
2014-08-09, 19:28
|
#81 |
|
"Norbert"
Jul 2014
Budapest
109 Posts |
I reached x=22,000 and found one new PRP:
387^21694+21694^387, 56138 digits. |
|
|
|
|
2014-08-13, 13:28
|
#82 |
Jan 2005
Minsk, Belarus
24·52 Posts |
Last fiddled with by XYYXF on 2014-08-13 at 13:30 |
|
|
|
|
2014-08-28, 01:56
|
#83 |
|
"Mark"
Apr 2003
Between here and the
143138 Posts |
The double-check has been completed for all x and y <= 12500. Nothing new to report.
|
|
|
|
|
2014-08-28, 06:30
|
#84 |
|
"Norbert"
Jul 2014
Budapest
109 Posts |
I reached x=24,000 and found one new PRP:
247^23412+23412^247, 56018 digits. |
|
|
|
|
2014-09-21, 18:48
|
#85 |
|
"Norbert"
Jul 2014
Budapest
1558 Posts |
I reached x=26,000 and found one new PRP:
291^25742+25742^291, 63426 digits. |
|
|
|
|
2014-10-05, 00:33
|
#86 |
|
"Norbert"
Jul 2014
Budapest
109 Posts |
I reached x=27,000 and found one new PRP:
267^26336+26336^267, 63905 digits. |
|
|
|
|
2014-11-01, 07:59
|
#87 |
|
"Norbert"
Jul 2014
Budapest
10910 Posts |
I reached x=30,000 and found one new PRP:
257^29356+29356^257, 70746 digits. |
|
|
|
|
2014-11-04, 23:13
|
#88 |
Apr 2010
Over the rainbow
23·52·13 Posts |
reserving x=2501=> 3000 and y=12501=>15000
already found one 2696^14313+14313^2696 is a 3-PRP (49104 digits) Last fiddled with by firejuggler on 2014-11-04 at 23:19 |
|
|
|
 |
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Leyland Primes: ECPP proofs | Batalov | XYYXF Project | 17 | 2021-07-12 20:05 |
| Mersenne Primes p which are in a set of twin primes is finite? | carpetpool | Miscellaneous Math | 3 | 2017-08-10 13:47 |
| Distribution of Mersenne primes before and after couples of primes found | emily | Math | 34 | 2017-07-16 18:44 |
| On Leyland Primes | davar55 | Puzzles | 9 | 2016-03-15 20:55 |
| possible primes (real primes & poss.prime products) | troels munkner | Miscellaneous Math | 4 | 2006-06-02 08:35 |
